Finding the Fourth Proportional to 11,084.89, 16,617.97 and 5,158.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,084.89 : 16,617.97 = 5,158.72 : x
2. Step 2: Convert to fraction form
   11,084.89/16,617.97 = 5,158.72/x
3. Step 3: Cross multiply
   11,084.89x = 16,617.97 × 5,158.72
4. Step 4: Simplify right side
   11,084.89x = 85,727,439.87
5. Step 5: Solve for x
   x = 85,727,439.87/11,084.89
6. Step 6: Final answer
   x = 7,733.72